Question about Bushnell NorthStar 78-8831 (525 x 76mm) Telescope

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Need more friction on movements. The slightest touch moves off target

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Remove the 3 screws holding the black cover on the mounting arm. Gently tighten the lock nut until you achieve the required resistance but not too much that motor won't function. I found less that 1/8th of a turn was enough.

Posted on Feb 19, 2012

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Posted on Jan 02, 2017

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What is air resistance? how does it work. And how would you explain air resistance. please help me!!! this is for my science experiment and it will help me with my learning. thank you very much, anybody,...


everything in creation has a coefficient of friction including air
when air is moved over a surface that friction comes into action and the part of the air that is touching the surface is affected by that friction and so is actually slowed down in relation to the air above it
This is air resistance and is subject to certain physical laws regarding air pressures and other laws
The faster the air is made to travel over the surface ,the greater the friction and so the greater the heat being generated ( greater the resistance)
Heat generation is a change of energy from air flow over the surface ( dynamic energy) to heat energy
a reason that objects entering the earth atmosphere , glow red then burn up
the air resistance generates the heat through the friction of the resistance to movement
as an object moves through the air , the air is displaced and as air likes to maintain equal pressure that displacement creates low pressures in the air which have to be filled back to normal
If the air is stopped from from equalizing the pressure ,then a resistance to the movement is registered as the object has a low pressure area around it that slows the movement down or moves the object into that low pressure area
examples are sails on a boat, wings of an aircraft, air flowing over the end of an open pipe
basically air resistance is the resistance caused by the physical properties affected by an object moving through the air.

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1 Answer

What allows clutch to slip so much to not move car.


-Possibly time to replace new clutch.

Good luck


mai

Nov 10, 2014 | 1990 Toyota Camry

1 Answer

Sears snowblower 536887990


Take the belly pan off, squeeze the drive lever and see if the friction wheel is contacting the disc. If it is, make sure there's no grease or oil on it. Seems to me if you're not getting any movement the friction disc may not be making no contact. I would also trace the cable and linkage to troubleshoot. Let me know what you find out.

Feb 14, 2014 | Garden

1 Answer

How do you remove the spare on a 2005 chevy colorado


Spare Tire Colorado 2005 will not come down.
The safety hatch was rusted and did move when the friction powered lever tried to release it when the tire was lowered with the crank. The spare came down an inch or so. I used a flashlight to see how the hatch worked. It was easy to see the mechanism thru the openings in the rim. If the hatch has got the slightest friction due to rust, it will not move, since the force delivered by the lever is very low due to the low torque given to it by the friction coupling at the crank axle. The function of the mechanism can easily be seen on the pictures. The procedure to get the spare down after a long time of not being in use is as follows:
  1. Crank down the spare a little in order to release it so it can be turned around for maximum accessibility of the hatch system, which is accessed thru the rim openings.
  2. Shine with a flashlight thru the openings and locate the hatch pin and the maneuver lever.
  3. Move the crank a little back and forth to learn how the lever works. Let go of the crank after a tire-down movement. The lever is supposed to release the hatch. The hatch will of course not release, since it is frozen. Normally the hatch is returned to "lock" position with the aid of a leaf spring when the crank is rotated "up".
  4. Grab a crowbar or similar rigid steel bar and persuade the hatch to open by just bang on the pin in the same direction that the lever wants to move it.
  5. When you see that the pin, which is attached to the safety hatch, has moved to the end of the groove, then continue the cranking in order to lower the spare to the ground.
  6. Remove the spare. Use WD40 to loosen up the hatch and all moving parts, but WD40 is not a long-term lubrication solution. After the WD40 treatment, use a good industrial lubricant or motorcycle chain oil to lube the hatch. Just soak the whole works with oil!
  7. Exercise the spare tire mechanism at least once or twice a year to keep it in good condition. Use your oil spray every time and the system will probably work fine for the next century...
One picture, the one where the system is not lubricated shows the pin. The lever is moved away from its working position to show the hatch pin arrangement. The other picture shows the system in working order.

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Aug 15, 2012 | 2005 Chevrolet Colorado

1 Answer

What is the difference between a Swedish massage chair and a Shiatsu massage chair?


A Swedish massage chair incorporates five different stroke patterns (sliding, kneading, tapping, vibration and friction) across muscles groups; while a Shiatsu massage chair combines pressing, swaying, patting and rolling movements while targeting pressure points.

Aug 06, 2012 | Furniture

1 Answer

ETX 60 altitude doesn´t work, but motor works


You need to tighten the friction lock - it acts as a slip clutch.

Apr 08, 2010 | Meade ETX-60 AT Telescope

1 Answer

Hi, I have a TASCO TITAN, 3-9x42, How do I re'paralax it to 35yds


I don't know if your parallax is adj, usually something that comes with the scope, set for around 100 yards. Set up your rifle in sand bags, look at a target at 100 yards, without moving the rifle, move you head left and right , up and down, and see if the cross hairs move off target, No? good, now try it again at 25, 50, 75, etc, where ever it is the least movement is your most accurate range. Some scopes will move 4 to 5 inches off. Not good.

Mar 01, 2010 | Optics

1 Answer

Dell Latitude D620 locks up when moved


Is this when the ac adapter is plugged in?? Or on Battery??

Feb 06, 2009 | Dell Latitude D620 Notebook

1 Answer

Leapfrog leapster hand held console


Had the same problem and no target. Wait after it says touch the center of the target for at least 5 minutes maybe longer and suddenly it will beep and appear. After touching each of the 5 targets as they move from corner to corner and then center the stylus and touch screen once again worked.

Art

Jan 08, 2008 | Video Game Consoles & Games

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